Electric-lamp socket.



VICTOR REGINALD nnsrnnn, or CHICAGO, lILLINOIS.

ELECTRIC-LAM? socnn'r.

Specication of Letters Patent.

To all f wlwm t may concern:

Be 1t known that I, VICTOR R. DEsrARD,

of Chicago, in the county of Cook and State -Fig`. 4 is an elevation .right angles of Illinois, have invented certain new and useful Improvements in Electric-Lamp Sockets, of which the following 'sa specification.v l

The object of this invention, generally stated, is to provide an improved means for securing an electric lamp socket to an electricsignboard. o

The inventionaims to providea socket of such construction that the operation of attaching the socket to the signboard may be performed entirely at the rear side of said board.

The features of the invention will be more fully understood from the following detailed description taken inconnection withr the accompanying drawings, in which- Figure 1 is a fragmental rear side view of a signboard and a rear endview of 'myjimproved lamp socket attachedffto said board. Fig. 2 ShQWs the socket,as iig-:appears lfrom the front Aof the signboard. Fig. 3. is a side f l desired the body at 19 (Fig. 2) to receive the fingers.

elevation of the socket, a p'ortioiifthere and the signboard being"shown insecti Fig. 3.

In so far as its relation to the "electriclamp is concerned, the socket may befof l mounting screws 10 by `to. abut against the rear any common or preferred construction, be-

ing herein showxras comprising the body portion 5 having therein the usual threaded metallic shell 6 and contact piece 7. The

parts'6 and 7 are electrically connectedito plates 8 and 9, respectively, upon the end of `the body 5, said plates having thefusual which the worlnnan may attach wires to the socket. 'y

Adjacent to its open end the body is proan Vannular-rib 11 and two d-v projecting lip 13 at .the end of the socket v which is adapted -to pass `through .the opening in the signboard'A, the rib 11 and .lugs 12 forming a continuous shoulder arranged fac'e'lf tliesign-v board around lthe opening therein. The socket is held in this position by a pair vof fingers 14which pass through openings in; Vthe lugs`12 and through theA opening' in the board A. and have angular .or hooked ends 15 to engage the forward face ofthe board. These fingers are pivotally carried at their t opposite ends by a pair of spring arms 16 Application led May 27, 1914. Serial No. 1841,203.

f tion,

ative position.

Patented Fens, 1916.

pivoted at rz in the ings 1a In' their pre! ferred form, these arms are of' U-shape, the

ends of the U being turned in to ent-erthe i lugs 12, and the sides of the U being bowed laterally, *as seen most clearly in Fig. 3, to

provide the desired resiliency in the arms.

The arms t snugly alongside the body of the'socket. The resiliency inthe arms acts to clamp the boardA firmly ybetween, theangular ends 15 of the lingers and the rib 15 lie alongside thek body"4 of the socket sothat said angular ends may readily be withdrawn along with the lip ,.13 through the ,opening in the board A. The lugs `12 are notched as fat 18 to -permit the outward swinging movement of the fingers 14, and 5 may also be notched as @When the parts are ln-their clamping posi- Therefore, .the resiliency of the ends A,15. l

hold the fingers in their operarms acts to are swung outwardly as. seen in Fig., 3, the fingers 14 lie at` the inside` of thejizpivot points 17 of the arms 16. The line of pull is directly along the ngers 14from their point of attachment to the middlefof the arms 16v to thefangular l11. Preferably the ends orhook's 15 are In attaching 'a socket'to the board A. the

-arms 16 are {irst swung-outward away from lthefbody 5,-thelflip 13 and angular ends 15 are'zpassed through the opening in the board siliency ofthe arms alsopermits different thicknesses 4ofboards A to bel accommodated between -the ngerends 15 and the rib 11. The lsocketjis clamped rmly but yieldingly so that no breakage will occur.

With. Asome of the sockets heretofore produced itis'necessary to form an irregulary or non-circular opening inthe signboard to receive the socket', and the latter must bev secured in place in a definite relation to said opening. With my 'socket a plain circular opening is formed .in the board, which socket which is arranged to be mounted in place entirely 'from vthe rear side of the board. It is not necessary when working on a large signboard, as is the case with some prior sockets, to have an assistant at the front of the board to insert the socket or a part thereof 'through the opening in the board.

I claim as my invention:

1. The combination, With a signboard having an opening therethrough, of a lamp socket having a lip adaptedvto project forwardly into said` opening and having a part to abut against'the rear face of the board, a member adapted to engage' the front face `of the board, and spring means acting on said member to cla-mp .the board between said member and 'said part.

2. The combination, with asignboard having an opening therethrough, of a lamp socket` having an annular rib adjacent to its open end, a lip-adapted to project forwardly through said opening, said rib being adapted to abut against the rear face of the signboard, a pair of fingers adapted to project forwardly through said opening and engage'the front face of the signboard adjacent to the edge of the opening, and spring means acting on said fingers to clamp tht? signboardbetween said fingers and -said r1 y i v 3. The combination, with a mountingboard, of a lamp socket abutting against one face of said board, a member having a hooked portion to engage the opposite face of the board, and spring means mounted on the socket and' acting -on said member to cause the hooked and secure the soc et thereto.

4.' Thecombination, with a signboard having anopeningl therethrough, ,ofv a lamp socket having a portion adjacent to itsopen end whichis insertible through saidopening from` the rear side ofthe board, said socket having a 'shoulder arranged to abut against the rear..side ofy the board, andsprmg-actuated means to pass forwardlythrough said opening andengage kthe front side of the board forl securing the socket in place.

5. The combination, with a board having *an opening therethrough of an electrical receptaclehaving a portion lying in said just as well in one position as portion yto grip the board" opening, and a rib to abut against the face of the board adjacent to said opening, clamping means mounted on said receptacle at the side of the board adjacent to said rib, said clamping means having a portion passing through the opening in the board andengaging the opposite face thereof and spring means connected to the receptacle at-the same side of the board as that at which the rib is located, for actuating said clamping means. v

6. A lamp-receptacle body, two lingers having hooked clamping ends and two U- shaped spring arms located at opposite sides of the body, each arm having two ends which are pivoted to the body, each of said fingers being pivoted-to thel middle of one of said arms.

7. The combination, with a mountingboard, of anv electrical receptacle adapted to abut against oneface of said board, a linger having a hooked end adapted to pass through an opening in the board and engage the opposite face thereof, and spring means acting on saidfinger to draw the hooked end against said opposite face.

I8. The combination, with a signboard having an openingtherethrough, of a lamp 'socket having a lip atfits open end adapted to project throughsaid opening and having a rib adaptedto abut against the rear face of the signboard, .means at one side of the socket adapted to engage `the front face of the signboard, a sprlng-arm pivoted on the other side of said socket, and a linger operable by said arm and having a hooked endv adapted to pass through said opening and engage the forward face of said board when said varm is swung alongside the socket.

9. The combination, With a` mountingboard,1of an electrical receptacle adapted to abut against one face-ef said board, clamping means having a -portion adapted to pass through an opening in said board .and engage the.y opposite face thereof to secure the receptacle to-the board, and' spring actuating-means pivotally attached to the receptacle and also 4pivoted to the clamping means. n f

j 10. The combination, with a signboard having an opening therethrough, a lamp socket havingat its open end a lip adapted to project through said opening, said socket also having an annular rib adaptedto abut against `the rear face of the board ladjacent to said opening, a pair of,diametriically opposite lugs'on the socket, a pair of springarms pivoted insaid lugs, and a pair of lingers `carried by said arms-:fand having hooked ends adaptedfto passthrough` said opening alongv with said -lipvwhen'fthe arms arein one position, said armsb'eingadapted to be swung to carry said hooked ends vinto engagement'with the @front face of the boa 'rd adjacent to said opening.

of said board to clamp thereceptacvle thereto when said arms are in acertam position. 12. Alamp receptaele body, means at one side of the body for el'xgaging a sign-board, and means at the other side ofthe body for attaching the body to a sign-board, the-last mentioned means comprising a finger having a hooked' forward end, and a spring-arm pivoted to the body near theiforwardend of Athe body, said arm being pivotedlto therear 'end of the finger, sald finger when 1n -clamplng position belng located between the pivot' of the arm and the axis of the' body.

13. r[he combination, with a signboard having 'a circular opening therethrough', of a socket adapted to engage in said opening and abut against the rear "face of the board, hooks carried by the socket and adapted .to pass ,through said opening and engage the front face ofthefbmlrrh and pivotedspring means for operating said hooks, whereby the socket may be fclamped to: the boardin various positions in said opening. v f 14. Alanip receptacle body, means at one sideof thebody forengaging a sign-board, and means at the other-sident the bodyv for attaching'the` body toa Sign-board, the last mentioned 'means Comprising a clamping'- member, and a. spring `rarln'pivoted` to'the body near the forward end `ofrthe body, the rear portion o said-"armv being eo'nnec ed 'tothe rear portion of the'elanipingmember;

` l5. A lampreeeptaele'body,means at one side of said body forenga'ging alsign-board;

'-` and meansat the othersi'de of said body lfor and meanl'atthe otherside of lthe"biuiyff attaching the body to a sign-board, the last l rear end of saidf member.'

` '16. lAlamp1-receptalebody, means at one side" of the bfody for' engaging a Vsign-bai'fd,

or attaching' vtbe/leeds* Lto a Sgnbo'firdfth' las@ mentioned. means' dwlnprs'in "planning memberliavinga hooked :forward endgfth rear portion of-said? clamping 'member rbeing adapted )to swihgltw'rd' anda'way'ffrof the l`d body; and' spring means engaging `therear` 'portionVQ of' saidl member v and'g arraigedto @im :said *longitudinally*inw e ampingpositio I Whe j's'aiY member dies alongside ,the body.

through an openingin `the signboard when' Y said Clamping member 'occupies' al `certain position, means whereby the'clan'lplng,mem`

ber is supported `for pivotal movement intoy and out of such position, and Ineansto oper# atesaid membel f" "-18.`Infaflamp receptacle, .a body, and means 'for attaching thebodyvto-a signforward end, fand spring means for drawiing said finger" rearwardly longitudinally of 19. In a lamp receptacle, a body having a shonldernel'ar'its forwardiend to -lie in contact with a signboard` and for attaching-the body'to a signboard,fcomprising al ngerhavinga'bentforward end adapted to liel in front of the signboard,'a`nd spring means for drawing'sal'dfinger rearwardly longiboard, comprisingfa' finger having a bent body upon' an axis locatedladjacent to the' forward endof said finger-,and means for lmlding said ,fi-nger" againstisaid body.

21.*' In a larnfp "'receptacle,` a'. body, and means-1 yfor attaching the 'body to a signboa'rd, thel las'il'mentioned means comprising a lringer vhavingla "bent forward end`,means whereby lsaid-finger Iisfarran'g'edto swing toward andawayffrom the 'body 'upon ian axisloeated adjacent to tlieforvvardfend 'of ing through said opening from a point in In testimony whereof, I hereunto set my 1front of said sgoulger to a pintdhehind the hand in the presence of two witnesses.

ug, said mem er ein arrange to swing toward and away frongl` the body upon an VICTOR REGINALD DESPARD' axis located adjacent to the forward end of In the presence ofthe finger, a spring arm lpivotedto said lug GEORGE L. CHINDAHL, and to the rear portion of said member. MARGARET H. MANN. 

